The fuel economy (in miles per gallon) of a certain car is E(x) = −0.01x2 + 0.58x +10.4, where x is the driving speed (in miles per hour, 20 ≤ x ≤ 60). At what speed is fuel economy greatest? x = ______________ mph
The fuel economy (in miles per gallon) of a certain car is E(x) = −0.01x2 + 0.58x +10.4, where x is the driving speed (in miles per hour, 20 ≤ x ≤ 60). At what speed is fuel economy greatest? x = ______________ mph
Chapter3: Polynomial Functions
Section: Chapter Questions
Problem 105RE
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The fuel economy (in miles per gallon) of a certain car is E(x) = −0.01x2 + 0.58x +10.4, where x is the driving speed (in miles per hour, 20 ≤ x ≤ 60). At what speed is fuel economy greatest?
x = ______________ mph
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